Asterisk Blog - Page 35

Synopsis Plays a sound file with fast forward, rewind and stop controls. Description ControlPlayback(filename[|skipms[|ff[|rew[|stop[|pause[|restart|options]]]]]]]) Note: New version Asterisk (about 1.6 above), the Optional Parameters separated by the , character not | This application will play back the given…

Synopsis Play a tone list Description Playtones(tonename) Playtones(tonelist) Plays a tone list, either the tone named tonename defined in the indications.conf file, or a directly specified tonelist of frequencies and durations. See indications.conf for a description of the…

The h extension Gets executed after a call has been terminated. Use DeadAGI instead of AGI here. Do not call Hangup from within the h extension. When the ‘h’ extension is running, the call legs have already been…

Dialplan Global Variables Dialplan global variables and their initial values are defined in the extensions.conf file following the Dialplan General Settings. The global variables section begins with the header: [globals] Following this header you may define global variables…

Description Congestion([timeout]) Sends a signal to inform the channel of congestion. This command waits for the user to hang up unless the optional timeout has been specified; it does not continue execution of further commands. On a SIP…

The MGCP channel in Asterisk Apparently the MGCP channel supports the following CLASS service codes: – blind transfer FLASH – consultative transfer 67 – Calling Number Delivery Blocking 70 – Cancel Call Waiting 72 – Call Forwarding Activation…

How to transfer or forward to voicemail mailboxes Assume you have 3 digit extensions 100 – 199, then you can put something like this in the dialplan to allow users to transfer calls directly to a mailbox by…

Note: This command is completely obsolete and has been removed Synopsis: Save substring digits in a given variable Description: SubString(variable=string_of_digits|count1|count2) Assigns the substring of string_of_digits to a given variable. Parameter count1 may be positive or negative. If it’s…

IP address mask for SIP traffic In a user/peer definition in Asterisk config sip.conf, you may limit SIP traffic to and from this peer to a certain IP or network Syntax permit=<ipaddress>/<network mask> deny=<ipaddress>/<network mask> Order Matters! –…

Starting Asterisk -c: Console mode. Don’t go into background mode, stay in foreground with a command line interface (implies -f) -C <filename>: Start Asterisk with a specified configuration file -d: Debug mode -f: Stay in foreground mode -g:…

The “s” extension is used when there is no known called number in the context used. The “s” extension is used when starting a call. It is also used when defining a macro. Incoming calls are always placed…

Fromuser= and fromdomain= This is used when calling TO this peer FROM asterisk. If you’re using _register=>_ with another SIP proxy, this setting can come in handy since some SIP networks only allow users in the right domain…

t (lower case t): Timeout extension in context. T (capital T): Timeout on AbsoluteTimeout Asterisk standard extensions Asterisk cmd ResponseTimeout Asterisk cmd AbsoluteTimeout: Setting the maximum call time Asterisk config extensions.conf: The dial plan Asterisk | Tips &…